Recharge characterization by geoelectrical imaging and the GIS of the Plio-Quaternary aquifer (a case study of Central Haouz- Marrakesh)

  • Meriem Snineh Associated Unit of Research to CNRST (GEOHYD-URAC44) & National center of Studies and Research about Water and Energy, Cadi Ayyad University, Marrakesh, Morocco
  • Khalid Mehdi Associated Unit of Research to CNRST (LGMSS-URAC45), Chouaïb Doukkali University, Faculty of Sciences El Jadida, Morocco.
  • Said El Goumi Associated Unit of Research to CNRST (GEOHYD-URAC44), Cadi Ayyad University, Faculty of Sciences Semlalia, Marrakesh, Morocco.
  • Nour-Eddine Laftouhi Associated Unit of Research to CNRST (GEOHYD-URAC44), Cadi Ayyad University, Faculty of Sciences Semlalia, Marrakesh, Morocco.
  • Abdennabi El Mandour Director of Mohamed VI Museum of Water Civilisation in Morocco, Ministry of Habous and Islamic Affairs, Marrakesh
Keywords: Electrical Resistivity Tomography (ERT), Runoff coefficient, GIS, Haouz central, Plio-Quaternary aquifer, Hydrogeological characterization

Abstract

Groundwater resources in Morocco are increasingly scarce. The study area which is Central Haouz belonging to the Marrakech plain is not immune to this phenomenon. This is due to the semi-arid climate on the one hand, and on the other hand, due to accelerated population growth and the economic development implications. The Plio-Quaternary aquifer of the Central Haouz has been the subject of several studies, but its Hydrogeological characterization has been classically carried out using geological and pumping test studies. Our study is in this sense to show the importance of the contribution of GIS and Electrical Resistivity Tomography (ERT). The first GIS approach determined the Runoff coefficient, which helps to locate low runoff areas corresponding to recharge zones of the water table. These areas are chosen as the site for geophysical surveys. The second method consists to detect the effect of the recharge to increase the water table in the study area and the characterization of the aquifer. Four ERT surveys were performed showed on the aquifer the positive effect of the recharge dike recently built at the Wadi and dismantle the reliability of the GIS results concerning the infiltration zones founded.

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Published
2020-04-30
How to Cite
Snineh, M., Mehdi, K., Goumi, S. E., Laftouhi, N.-E., & Mandour, A. E. (2020). Recharge characterization by geoelectrical imaging and the GIS of the Plio-Quaternary aquifer (a case study of Central Haouz- Marrakesh). European Scientific Journal, ESJ, 16(12), 316. https://doi.org/10.19044/esj.2020.v16n12p316